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Finding the Fourth Proportional to 356,525.28, 534,195 and 251,121.60

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Solution

The fourth proportional to 356,525.28, 534,195 and 251,121.60 is: 376,264.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,525.28 : 534,195 = 251,121.60 : x
  2. Step 2: Convert to fraction form
    356,525.28/534,195 = 251,121.60/x
  3. Step 3: Cross multiply
    356,525.28x = 534,195 × 251,121.60
  4. Step 4: Simplify right side
    356,525.28x = 134,147,903,112
  5. Step 5: Solve for x
    x = 134,147,903,112/356,525.28
  6. Step 6: Final answer
    x = 376,264.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.